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Temperature sensing module

A technology of temperature sensor and temperature sensing, applied in thermometers, thermometer applications, radiation pyrometry, etc., can solve the problems of different physical properties, different heating/cooling speeds, etc., and achieve the same heating/cooling speed and anti-interference The energy can be improved and the effect of saving electric energy

Inactive Publication Date: 2009-09-16
FORTUNE SEMICON
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AI Technical Summary

Problems solved by technology

However, the reference temperature sensor in this patented technology is an independent sensing element, and it is packaged in a metal can (metal can) together with the infrared sensor. The physical characteristics of the two are different, and it is still impossible to solve the problem of simultaneous entry and exit. Problems caused by different heating / cooling speeds in different temperature environments

Method used

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Embodiment Construction

[0017] The following is a detailed description of the structure composition and the effect that the temperature sensing module of the present invention can produce, in conjunction with the accompanying drawings as a preferred embodiment:

[0018] See first figure 1 , is a preferred embodiment of the temperature sensing module proposed by the present invention, and its composition includes:

[0019] The first temperature sensor 10 is used to sense the temperature of the environment, and the first temperature sensor 10 is a thermal diode (Thermal Diode) that can be manufactured using semiconductor process technology;

[0020] The second temperature sensor 20 is used to sense the temperature of the object to be measured (such as the eardrum). The second temperature sensor 20 can be a thermal sensor of thermopile type (thermopile), or a Infrared temperature sensor (CMOS-IR Detector) manufactured by semiconductor process technology.

[0021] The first temperature sensor 10 and th...

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Abstract

The invention discloses a temperature sensing module which comprises a first temperature sensor and a second temperature sensor. The first temperature sensor is used for sensing the ambient temperature, while the second temperature sensor is used for sensing the temperature of eardrum. The first temperature sensor adopts a thermal diode, while the second temperature sensor can adopt a thermopile type thermal sensor or an infrared temperature sensor (CMOS-IR Detector) which is manufactured by the complementary metal-oxide semiconductor manufacturing technology. The temperature sensors are both made of semiconductor material so as to maintain identical physical properties. Even if the temperature sensors are simultaneously operated under the conditions with different temperature, the heating / cooling rates thereof are identical. The invention has the advantages of simple correction, low manufacturing cost and low power consumption.

Description

technical field [0001] The invention relates to a temperature sensing element suitable for an infrared ear thermometer, in particular to a temperature sensing module integrating two temperature sensing elements. Background technique [0002] Infrared sensors can be mainly divided into two categories: one is a thermal sensor, and the other is a light sensor. Among them, thermal sensors are generally the type commonly used in infrared ear thermometers. Currently, thermal sensors can be divided into three types: thermopile, pyroelectric and bolometer. ). Since every object with temperature emits infrared thermal radiation, when using an infrared ear thermometer to measure the eardrum temperature, the ambient temperature can easily affect the accuracy of the ear temperature measurement results. For infrared ear thermometers As far as the manufacturer is concerned, the infrared ear thermometer designed and produced must be able to automatically compensate and adjust according t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K13/00G01J5/00G01J5/20G01J5/12
Inventor 俞再钧
Owner FORTUNE SEMICON
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